iSolars 40W folds down to only 30 x 25 cm and come with a 12V x 8 Ah lithium battery that will power a laptop computer for up to 2 hours. It works with iPhone and Macbook. It also comes with a Maximum Power Point Tracking Quick-charging MPPT Controller, which tracks variations in the current and voltage produced by the solar panel and ensures a maximum charge rate for the battery. 40W Panel is 1.2A. It takes 4 – 5 hrs to fully charge the lithium battery, which has an inverter output as well as a USB port for bus powered devices. Other standard accessories include a cigarette lighter plug, DC to AC inverter and clamps for charging car batteries. Solar Panels used are made by SunTech, world’s number one panel manufacturer. For a cellular phone with power consumption of 2W, you may use it for 40 hours. For AC-DC power adaptor, it comes with 110 as default for US
